 
 .box {
     width: 100vw;
     height: 100vh;
     background: linear-gradient(rgb(71 114 193), rgb(209 33 195));
     display: flex;
     justify-content: center;
     align-items: center;
 }

 .box #basic{
    width: 500px;
    height: 300px;
    background: white;
    text-align: center;
    padding:70px 100px 30px 0px;
    box-sizing: border-box;
    
 }